Messages in this thread | | | Date | Mon, 25 Feb 2008 12:23:10 +0100 | From | Gaudenz Steinlin <> | Subject | filesystem corruption on xfs after 2.6.25-rc1 (bisected, powerpc related?) |
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Hi
Since upgrading to 2.6.25-rc1 I see filesystem corruption on my XFS filesystem. I can reproduce this by doing "git reset --hard v2.6.25-rc1" on a git checkout which is on some other revision. Git outputs strange error messages (like file xxx is a directory when xxx really is a file) and sometimes the filesystem "hangs" (I can no longer do any operations on it even from another shell). If I reboot with a working kernel and check the filesystem xfs_check reports many errors. I also see the problem when doing other (not related to git) operations on the filesystem. Git reset is just the easiest way to reproduce it.
I was able to track this corruption down to commit a69b176df246d59626e6a9c640b44c0921fa4566 ([XFS] Use the generic bitops rather than implementing them ourselves.) using git bisect.
Reverting edd319dc527733e61eec5bdc9ce20c94634b6482 ([XFS] Fix xfs_lowbit64) to avoid merge conflicts and the faulty commit on top of 2.6.25-rc3 fixes the problem.
My filesystem is on an LVM2 logical volume and my computer is a PowerBook G4 (model 5,8). I'm using GCC 4.2.3.
My problem is similar to the problem Johannes Berg reported in: http://oss.sgi.com/archives/xfs/2008-02/msg00244.html
AFAIK Johannes also uses a PowerBook. Maybe this is an endianness issue.
Gaudenz
-- Ever tried. Ever failed. No matter. Try again. Fail again. Fail better. ~ Samuel Beckett ~
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